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Ithinkit'swellworth

練習題2.44W

問題詳情:

Ithinkit'swellworth

I think it's well worth ______ our best to learn a second language well.

A. to try       B.    trying      C.   try          D.   tries

【回答】

B

知識點:動詞和動詞短語

題型:選擇題